<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.staticfile.org/react/16.4.0/umd/react.development.js"></script>
    <script src="https://cdn.staticfile.org/react-dom/16.4.0/umd/react-dom.development.js"></script>
    <script src="https://cdn.staticfile.org/babel-standalone/6.26.0/babel.min.js"></script>
</head>
<body>
    <div id="app"></div>
    <script type="text/babel">
        class App extends React.Component{
            constructor(props){
                super(props)
                this.state={
                    msg:"state"
                }
            }
            render(){
                return (
                    <h1 onClick={this.handleClick.bind(this)}>{this.state.msg}</h1>
                )
            }
            handleClick(){
                console.log(this);
                console.log("event");
            }
        }
        ReactDOM.render(
            <App/>,
            document.getElementById("app")
        )
        /* 
        vue中数据放在data中
        react 中数据放在constructor里面的state中
        */
    </script>
</body>
</html>